Nitrocellulose gunpowder.



UNITED STATES PATEN'E GFFIQEB CONRAD HUBER'I' HEINRICHCLAESSEN; OFBERLIN, GERMANY, ASSIGI\TOR TO E. I.

DU PON'I DE NEMOUBS POWDER COMPANY, OF WILMINGTON, DELAWARE, A COR-PORATION OF NEW JERSEY.

NITROCELLULOSE GUNPOWDER.

97 9,431 No Drawing. Application filed June 7,

To all whom concern Be it known that I, CO'NRAD HUBERT HEIN- RICHGLAESSEN, a subject of the King of Prussia, residlng at Berlin,Germairyr rhave invented new and useful NitrocelluloseGun powder; and Ido hereby declare the follow;- 'ing to be a full, clear, andexactpleserip tio'n of the same;

'Heretofore it has been the practice to materials such as cam hor;diphenylamin-' or carbamid, to nit-roe lulosepowders an powderscontaining nitrocellulose and nitro-i glycerin, to lower the combustiontemperature and also'to do away with the injurious effects which theseexplosives exert on the material ofthe barrel or bore, as .well as toregulate the relation between gas'pressure and initial velocity and toincrease the stability of the powders.

My'exp'eriments have shown that all of, the above-mentioned purposes canbe attained, and in a far greater degree, without impairing theballisticqualities in powders,

'if fenchone is added thereto. The advantage arising'from the use offenchone, in

place of the mentioned substances,'is that, in v itself, it furnishes anexcellent gelatinizing material for nitrocellulose.

Specification of Letters Patent;

1910. Serial No. 565,615.

- i The proportions which I have. found by experiment to give excellentresults are, (1.) 97% nitrocellulose with about 8% nitrogen content and3% fenchone, or (2.) 30% nitroglycerin 65% nitrocellulose with about12.9% nitrogen oontent,- 5% fenchone, The

two subscribing witnesses.

CONRAD HUBER'I. HElNRICH OLAESSEN.

.Witnesses:

WOLDEMAR HAUPT, HENRY HAsPnn.

components are, at the ordinary temperature :and'in the ordinary way,mixed together in name'to this specification in the presence of PatentedDec. 527, 19141. i

